<font><font face="verdana,sans-serif">I wonder about lumping things together sometimes. Locally we have gas stations amenity=fuel that have a convenience store and a ABM or ATM in OSM language. I'm tempted to have three separate POIs in much the same way as a bank with an ATM have two POIs together.<br>
<br>The problem with putting too much information on one POI is the rendering systems have problems with more complex coding especially how do you display it? Even to distinguish between a bus_stop and a bus_stop with shelter in a simple way with different icons doesn't seem to be standardized. <br>
<br>Cheerio John<br></font></font><br><div class="gmail_quote">On 12 June 2012 16:28, Peter Wendorff <span dir="ltr"><<a href="mailto:wendorff@uni-paderborn.de" target="_blank">wendorff@uni-paderborn.de</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi.<br>
While developing the look-and-listen map I currently do some research about tagging and tag combinations as I have to build some kind of decision tree to determine how to describe a given osm object as text.<br>
<br>
I thought about "first level tags" in the osm database and looked into the most often used keys and tags according to taginfo for that.<br>
<br>
Some of the most used "relevant" keys are amenity and highway, and I did a summary of value combinations of these.<br>
<br>
It turns out, that at objects, that have both keys these often are redundant.<br>
Before I start: in sum my overpass-api export of yesterday returned 2668 objects with both tags.<br>
<br>
I would really appreciate some comments and thoughts about my suggestions (as written behind the corresponding combination).<br>
<br>
In order of appearance the combinations are count (amenity, highway):<br>
(neither all combinations listed, nor all most used ones):<br>
<br>
redundant combinations:<br>
845 (bus_station, bus_stop)<br>
69 (lamp, street_lamp)<br>
34 (bus_stop, bus_stop)<br>
25 (speed_trap, speed_camera)<br>
10 (street_light, street_lamp)<br>
7 (doctors, emergency_access_point): probably I'm wrong here, but why should I go to a doctor to call a doctor for an emergency? I'm confused about these.<br>
7 (elevator, elevator)<br>
4 (public_lift, elevator): where public_lift is used only 5 times over all<br>
2 (bus_station, bus_station)<br>
2 (elevator, lift)<br>
2 (light_post, street_lamp)<br>
2 (mountain_rescue, emergency_access_point): additionally amenity=mountain_rescue is not documented (but listed on the german how-to-map-A)<br>
2 (speed_enforcement, speed_camera)<br>
<br>
not redundant combinations:<br>
213 (waste_basket, bus_stop)<br>
136 (bench, bus_stop): alternative: amenity=bus_stop; bench=yes (already used around 50k times)<br>
118 (parking, rest_area)<br>
107 (shelter, bus_stop): alternative: amenity=bus_stop; shelter=yes (already used 108k times)<br>
92 (parking, turning_circle)<br>
59 (parking, services)<br>
37 (waste_basket, street_lamp)<br>
35 (post_box, bus_stop): but often two objects, I think<br>
15 (shelter, emergency_access_point)<br>
6 (toilets, bus_stop): should be two objects, I think.<br>
6 (waste_disposal, bus_stop): IMHO again two objects.<br>
5 (watering_place, ford)<br>
<br>
combinations I guess to be an error:<br>
46 (parking, bus_stop) how is this in other countries? in germany this would usually be an error.<br>
45 (fuel, services) well, related, but amenity=fuel should not be tagged on the highway, right?<br>
32 (tourist, bus_stop): amenity=tourist is over all only 32 times in the database, so at least I would count amenity=tourist as useless. It's not documented in the wiki.<br>
30 (sloped_curb, crossing): outdated, as amenity=sloped_curb should be replaced by sloped_curb=yes (or better) or kerb=*<br>
27 (restaurant, services): should be more than one object.<br>
16 (school, bus_stop): should be two objects<br>
15 (bicycle_parking, bus_stop): should be two objects<br>
13 (fuel, service): probably services?<br>
12 (trash_can, bus_stop): waste_basket instead of trash_can?<br>
10 (fuel, bus_stop): two objects?<br>
8 (fountain, mini_roundabout): if a mini-roundabout is a fountain in parallel, I would suggest the center not to be traversable, that would be a contradiction to the mini_roundabout definition we found in the discussions in the last weeks.<br>
8 (recycling, bus_stop): I guess, this is most often a waste_basket, not what we usually call amenity=recycling. If that's wrong, these should be two objects.<br>
8 (toilets, rest_area): should be two objects, as the toilets are much smaller than the rest area I guess (else I would not call it rest_area any more, but toilets only)<br>
6 (grave_yard, turning_circle): sounds strange...<br>
5 (cafe, services): not on one object, I would say<br>
5 (fast_food, services): 2 objects<br>
5 (fuel, residential): should the fuel be on the same object as highway?<br>
5 (recycling, turning_circle): should be two objects<br>
4 (pub, bus_stop): two objects<br>
4 (public_building, bus_stop): two objects<br>
3 (pharmacy, bus_stop): two objects<br>
3 (place_of_worship, residential): two objects<br>
3 (school, residential): two objects<br>
3 (traffic_signals, traffic_signals): as I would interpret amenity=traffic_signals as an error; on top of that it's redundant<br>
2 (bank, bus_stop): I guess, this is a German mapper who mis-translated the German "bank" (which means bench)<br>
2 (bank, living_street): regardless, wether bank or bench is meant this IMHO is an error<br>
2 (bank, traffic_signals)<br>
2 (bench, cycleway): two objects!<br>
2 (bench, footway): two objects!<br>
2 (bench, turning_circle): two objects!<br>
2 (doctors, bus_stop)<br>
2 (fast_food, residential)<br>
2 (fire_hydrant, turning_circle): two objects.<br>
2 (fuel, track): two objects<br>
2 (parking, speed_camera): two objects<br>
2 (Piedibus_station, bus_stop): well, at least, the piedibus_station is not proposed or otherwise documented. english word would be walking_bus, I think (at least according to wikipedia)<br>
2 (place_of_worship, bus_stop): two objects!?<br>
2 (recycling, street_lamp): two objects or an error as it should be a waste_basket<br>
2 (restaurant, living_street)<br>
2 (restaurant, traffic_signals)<br>
2 (restplace, services): restplace should be rest_area, I think<br>
2 (school, traffic_signals)<br>
2 (shelter, footway)<br>
2 (signpost, crossing): that would be an obstacle on the crossing, thus on the intersection of two ways (in real world meaning of "way")<br>
<br>
<br>
comments, especially on the errors are welcome.<br>
<br>
regards<br>
Peter<br>
<br>
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</blockquote></div><br>